Xbox 360 Top Live Titles (based on UU’s)
1 Halo 3
2 Call of Duty: WaW
3 Call of Duty 4
4 Gears of War 2
5 RESIDENT EVIL 5
6 GTA IV
7 FIFA 09
8 Left 4 Dead
9 Halo Wars
10 Guitar Hero World Tour

Top Arcade Titles (Full Versions purchased)
1  The Dishwasher: Dead Samurai
2  Hasbro Family Game Night**
3  Castle Crashers
4  Penny Arcade Episode 1
5  Puzzle Quest: Galactrix
6  Peggle
7  Worms
8  UNO
9  3 on 3 NHL Arcade
10 Teenage Mutant Ninja Turtles 1989 Classic Arcade

The above arcade list is based on full versions purchased.
**Combined sales of all Hasbro Family Game Night titles

Original Xbox Top Live Titles (based on UU’s)
1 Halo 2
2 Star Wars: Battlfrnt 2
3 Counter-Strike
4 Fable
5 Conker: Live Reloaded
6 Splinter Cell Chaos
7 Star Wars: Battlefront
8 Doom 3
9 Burnout 3
10 Call of Duty 3

Top Community Games NEW! (Full Versions purchased)
1 RC-AirSim
2 Rumble Massage
3 DrumKit
4 Aquarium HD
5 Solar
6 NextWar: The Quest for Earth
7 Remote Masseuse
8 Little Racers
9 Rabid Gophers
10 Supercow

These lists are based on global unique users connected to Xbox Live or in the case of Arcade and Community Games, full versions purchased during the week.

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I guess those million users a day add up.

Halo 3 and Call of Duty: World at War switch places all the time. Halo 3 is going to have to take a long step aside when Modern Warfare 2 comes out. And how come Fifa 09 is in the top 10 but not Madden 09?

fifa is a much more popular game worldwide than madden imo.

Because the World is bigger than the United States of America!

Go places youll understand

@OP Halo 3 online is so much fun. I can understand why after two years its at the top.

Impressive to see 2 CoD games in the top 3, still.
Halo 3 best get as much time on top as possible... whem Modern Warfare 2 comes out i expect it to be sat on top for a LONG time.

When Modern Warfare 2 comes out I do think it's going to be on top but I don't think its going to stay on top as long as you guys think. With its userbase split between 3 relatively new games it will not be as heavily loaded as it could be. You also have to remember that Halo 3:ODST is coming out which will also give a massive boost the active online players for Halo.

Madden 09 has outsold Fifa 09 on the 360 by about a half a million units, so the question is valid.

Also, was Penny Arcade discounted this week?  It would be bizarre for a game that expensive to inexplicably jump back into the top sellers list.

Thanks for making me not have to explain myself. Also, online penetration rates for the 360 seem to be much higher in America than Europe, so it makes it even stranger.